Dien 168: Thi€t bi cO khi!buy cOng (clla van,Noi eMil rac kem thoo cae may m6c), he th611g di~u khi~n til Xli hay tl! dong va tin .hieu cUa chUng, cilng nhu thi€t bi !'lang.
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chuyen chung can phlii t6t vll luOn luOn 0 trang thai san sling lam viec.
Bien 169: Thi€1 b] co khi thuy cong can duQC xem xet dinh kY va kic:!m Ira tinh trang lam viec cua chang theo dung Iich da dt/QC ky su chinh nha may duyet,
Bi"eu 170: Cac cila van chinh cua ~p Iran xii Iii clio c;j be) chi bao dO mo. Cac co cau nang ha rieng biet, eac phan ~tsan cua cac cua van phai c6 lien he voi cac m6c chuaa,
Di~u 171: Khi nang ha cac cila van, sl! chuy~ndong phai de:! dang, khong bi ket, hbg va rung dOng, vi tri cac hanh trinh phai dung, cac bO phan do khOng bi bien dang, Khi ha, cac cila vall phai xuong dlnh ngudng trail va khit chat vao vanh do. Luong nuoc ro ri qua cac cua van khong dUilc vuot qua tri s6 thi€t k€ cho phep, Cac cua vall khong duoc venh va bien dang khong
binh thuong khi lam viec dl/oi ap Il!c.
Tuyet d6i cam duy tri mOt thbi gian dili cac cua van 0 cac
vi tri gay rung dong Ion cho chung va k€t c.1u cOng trinh.
Di~u 172: Chi cho phep W,n Mnh d6ng kill hoan toan cac cifa van lap dilt tren cac dt/bng 6ng co ap khi cac thi€t bi thOng khi lam vlec bin~ thl/bng va tin cay.
Di~u 173: cac !lfoi cMn rac pMi thl/llng xuyen dl/ilc lam
~ch.
T~i mili nM may thuy dien, can cit VaG tieu chuan kinh t€ va dO ben rna xac laPtri s6 gioi h;lll chenh l¢Ch ml!c nt/Oc trt/Oc va sau It/oi chan rac cho phu hilp.
Chuang 13
QUAN LV NUOC 0 NHA MAYDI~N DAM BAO
vt TROY VAN vA KHf TUQNG
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